High spatial resolution strain measurement of deep sub-micron semiconductor devices using CBED

Suey Li Toh*, K. Li, C. H. Ang, E. Er, S. Redkar, K. P. Loh, C. B. Boothroyd, L. Chan

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

Mechanical stress due to trench isolation and contact etch-stop-layers (ESLs) has been reported to show a marked influence on the electron and hole mobility of nanoscaled MOSFETs. Conventional tools such as micro-Raman spectroscopy and X-ray diffraction for measuring strain are limited in resolution. By using convergent beam electron diffraction (CBED) with nanometer spatial resolution, we have evaluated the mechanical stress induced in deep sub-micron devices by different etch-stop-layers (ESLs) and have demonstrated that the stress along the channel region can be engineered through the implementation of different ESLs.

Original languageEnglish (US)
Pages143-146
Number of pages4
StatePublished - 2004
Externally publishedYes
EventProceedings of the 11th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2004 - , Taiwan, Province of China
Duration: Jul 5 2004Jul 8 2004

Other

OtherProceedings of the 11th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2004
Country/TerritoryTaiwan, Province of China
Period07/5/0407/8/04

ASJC Scopus subject areas

  • General Engineering

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